公开(公告)号：US20170272280A1

公开(公告)日：2017-09-21

申请号：US15459749

申请日：2017-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kwang Seon KIM ,  Min Soo KANG ,  Bong Su KIM ,  Myung Sun SONG ,  Woo Jin BYUN

IPC: H04L25/02 ,  H04W24/02 ,  H04B7/0413

CPC classification number: H04B7/0413 ,  H04B7/0848 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0224

Abstract: The present disclosure relates to a wireless communication apparatus capable of increasing throughput using MIMO in an LOS environment and a method for the same. A wireless communication apparatus based on the LOS-MIMO technique may comprise a multi-link configuration unit, a frequency response correction unit, a signal compensation unit, and a feedback unit. In the apparatus, an additional LOS-MIMO equalizer is used at the front of an LOS-MIMO estimator and a coding unit in order to compensate in-band frequency characteristics of frequency response characteristics estimated by the LOS-MIMO estimator and a signal channel estimator, whereby the LOS-MIMO estimation performance can be remarkably enhanced. Also, precise separation of multiplexed signals through the above-described LOS equalizer can make it possible to increase transmission capacity by using the LOS-MIMO which can be applied to high-order mode (e.g., over 16 quadrature amplitude modulation (QAM)) digital communications.

公开(公告)号：US20150351103A1

公开(公告)日：2015-12-03

申请号：US14624812

申请日：2015-02-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Bong Su KIM ,  Min Soo KANG ,  Kwang Seon KIM ,  Woo Jin BYUN

IPC: H04W72/08 ,  H04W72/04

CPC classification number: H04W16/28

Abstract: Disclosed are a method for inter-beam interference reduction using cross polarization and a method for transmitting/receiving a signal. A transmitting method of a base station in a wireless communication system, includes: configuring a first parameter for forming a first beam having first polarization with respect to a terminal located in a first sub-sector, and configuring a second parameter for forming a second beam having second polarization with respect to a terminal located in a second sub-sector; and transmitting a signal to each terminal by forming the first beam using at least one antenna based on the configured first parameter and forming the second beam using the at least one antenna based on the configured second parameter, wherein a frequency band equal to a frequency band of the first sub-sector is allocated to the second sub-sector in a cell in the base station.

Abstract translation: 公开了使用交叉极化的光束间干扰减少的方法和用于发送/接收信号的方法。 一种在无线通信系统中的基站的发送方法，包括：配置第一参数，用于形成相对于位于第一子扇区中的终端具有第一极化的第一波束，以及配置用于形成第二波束的第二参数 相对于位于第二子扇区中的终端具有第二极化; 以及基于所配置的第一参数通过使用至少一个天线形成所述第一波束并将信号发送到每个终端，并且基于所述配置的第二参数，使用所述至少一个天线形成所述第二波束，其中等于频带 的第一子扇区被分配给基站中的小区中的第二子扇区。

公开(公告)号：US20150207551A1

公开(公告)日：2015-07-23

申请号：US14327750

申请日：2014-07-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Soo KANG ,  Kwang Seon KIM ,  Bong Su KIM ,  Woo Jin BYUN ,  Jong Soo LIM ,  Myung Sun SONG ,  Jae Ick CHOI

IPC: H04B7/04 ,  H04B7/08 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04L25/0204 ,  H04B7/0413 ,  H04B7/0608 ,  H04B7/10

Abstract: A spatial modulation method using a polarization and an apparatus using the same are provided. A spatial modulation method by a transmitting apparatus in a wireless communication system may comprise selecting an antenna to send data among transmit antennas arranged to have different polarization angles using a predetermined bit of input data based on indexes of the transmit antenna and mapping remaining bits of the input data to a preset constellation and transmitting the remaining bits of the mapped input data through the selected antenna.

Abstract translation: 提供使用偏振的空间调制方法和使用其的装置。 通过无线通信系统中的发送装置的空间调制方法可以包括：基于发射天线的索引，使用预定位的输入数据选择天线以发送天线之间的数据，以发送具有不同偏振角的数据， 将数据输入到预设星座，并通过所选择的天线发送映射的输入数据的剩余比特。

公开(公告)号：US20150195016A1

公开(公告)日：2015-07-09

申请号：US14592601

申请日：2015-01-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Bong Su KIM ,  Woo Jin BYUN ,  Min Soo KANG ,  Kwang Seon KIM ,  Jong Soo LIM

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0413 ,  H04B7/0671

Abstract: A line of sight (LOS) multiple-input and multiple-output (MIMO) system and a method of designing the system are provided, wherein a MIMO transmitter may include N transmission antennas, and an output transfer function of the MIMO transmitter may be adjusted based on phase difference between a direct path from each of the N transmission antennas to each of the M reception antennas and a delay path from each of the N transmission antennas to each of the M reception antennas.

Abstract translation: 提供了一种视线（LOS）多输入多输出（MIMO）系统和一种设计系统的方法，其中MIMO发射机可以包括N个发射天线，并且可以调整MIMO发射机的输出传递函数 基于从每个N个发送天线到每个M个接收天线的直接路径的相位差以及从N个发送天线中的每一个到每个M个接收天线的延迟路径。

公开(公告)号：US20140153502A1

公开(公告)日：2014-06-05

申请号：US13953312

申请日：2013-07-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bong Su KIM ,  Min Soo KANG ,  Kwang Seon KIM ,  Woo Jin BYUN

IPC: H04L5/06

CPC classification number: H04L1/0001 ,  H04B1/0064

Abstract: Provided is a wireless link system using a multiband, the system including: a common baseband module to operate in a first frequency band and a second frequency band higher than the first frequency band; at least one low radio frequency (RF) module to process a signal output from the common baseband module in the first frequency band; at least one high RF module to process a signal output from the common baseband module in the second frequency band; a plurality of antennas electrically connected to the at least one low RF module and the at least one high RF module; and a control unit to adaptively allocate a control signal and data to the at least one low RF module and the at least one high RF module based on state information of a wireless channel.

Abstract translation: 提供一种使用多频带的无线链路系统，该系统包括：在比第一频带高的第一频带和第二频带中操作的公共基带模块; 至少一个低射频（RF）模块，用于处理在第一频带中从公共基带模块输出的信号; 至少一个高RF模块，用于处理在所述第二频带中从所述公共基带模块输出的信号; 电连接到所述至少一个低RF模块和所述至少一个高RF模块的多个天线; 以及控制单元，用于基于无线信道的状态信息自适应地将控制信号和数据分配给所述至少一个低RF模块和所述至少一个高RF模块。